湘西北马金洞地区下寒武统牛蹄塘组含钒石煤矿产地质特征研究

本文以湘西北马金洞地区为研究区,采用地质填图、实测剖面、探槽揭露、实验测试及数学分析等方法研究了区内下寒武统牛蹄塘组含钒石煤的地质特征。研究结果表明区内下寒武统牛蹄塘组下段为主要的石煤赋存层位,石煤的厚度介于10.2~41.7 m,平均27.6 m,基本发育稳定；石煤的发热量与灰分、挥发份、水分及硫含量均有关系；石煤层顶底板的主要岩性均为黑色炭质页岩；伴生钒矿V₂O₅最高品位可达1.02%,达到工业品位,可与石煤共采。

Vanadium Contained Stone Coal Mining Geological Characteristics In Lower Cambrian Niutitang Formation In Majindong, Northwestern Hunan

In this paper, for the study area is Majindong area in Northwestern Hunan, use such methods as geological mapping, profile measuring, exploratory trench reveal, experimental test and mathematical analysis studied the vanadium contained stone coal geological characteristics in Lower Cambrian Niutitang Formation. The study found that stone coal mainly distributed in Lower Member, Niutitang Formation, Lower Series, Lower Cambrian, with thickness 10.2~41.7 m, average 27.6m, basically stable development; calorific value had relationship with ash, vdaf, water, sulfur of stone coal; the main lithology of roof and floor of stone coal seam was black carbonaceous shale; the highest grade of V2O5 was 1.02%, achieved the industrial grade, could be used together with stone coal mining.